Home / 815,026.22-1,222,481.61-215,974.11

Finding the Fourth Proportional to 815,026.22, 1,222,481.61 and 215,974.11

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Solution

The fourth proportional to 815,026.22, 1,222,481.61 and 215,974.11 is: 323,945.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,026.22 : 1,222,481.61 = 215,974.11 : x
  2. Step 2: Convert to fraction form
    815,026.22/1,222,481.61 = 215,974.11/x
  3. Step 3: Cross multiply
    815,026.22x = 1,222,481.61 × 215,974.11
  4. Step 4: Simplify right side
    815,026.22x = 264,024,377,711.12
  5. Step 5: Solve for x
    x = 264,024,377,711.12/815,026.22
  6. Step 6: Final answer
    x = 323,945.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.